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PK11722: CICS TRANSACTIONS ENTERED THROUGH THE VSE CONSOLE BY A MSG COMMAND ARE SOMETIMES LOST, AND NEVER START.

A fix is available

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APAR status

  • Closed as program error.

Error description

  • Transactions are entered to CICS through the VSE console using
    MSG F2,DATA=CEMT INQ TAS commands. However, some of the CEMT
    transactions never start.
    .
    EVA100 in DFHEVA10 is the CICS OC exit routine (Operator
    Communications exit). EVA100 runs whenever a VSE MSG for the
    partition console is issued, and passes the data on to the
    subtask in a console input buffer (CIB). Parameter CIBVMAXN
    controls the number of CIBs obtained during startup, and is
    hardcoded to 64 (decimal). The CEMT transactions are sometimes
    dropped when the number of messages exceeds this CIB count.
    .
    Change Team provided a testfix to increase CIBVMAXN to 128, and
    this resolves the problem. Customer is also requesting a WTO
    informational message when CICS drops a transaction, rather than
    to just ignore the MSG and exit.
    VSE may also have same problem. See DY46353.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All.                                         *
    ****************************************************************
    * PROBLEM DESCRIPTION: MSG commands sent to CICS using the     *
    *                      VSE console may be lost.                *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    When a MSG command to a partition running a CICS system
    is entered from a VSE console the Operator Communications
    Exit, EVA10O, is invoked to process the command. The input
    is passed to the messaging subtask in a Console Input Buffer
    (CIB). The number of CIBs available is determined by
    CIBVMAXN, which is currently hardcoded to 64. If all the CIBs
    are already in use the input message will be ignored, without
    notification.
    Note that VSE apar DY46353 fixes a problem with similar
    symptoms.
    Additional keywords: OCE OC OCExit DFHEV5010 MSGDFHEV5010
    MSGDFHEV5010I EV5010 EV5010I
    

Problem conclusion

  • The number of CIBs getmained at CICS initialization has been
    increased to the current maximum possible, 255.The storage
    used for the CIBs will now be above the 16M line.
    A new message DFHEV5010I will be issued if there are still
    not enough CIBs to process a command.
    The CICS transaction Server for VSE/ESA V1.1 Messages and Codes
    GC34-5561-07, will have new message DFHEV5010I added to section
    1.24 as follows:
    DFHEV5010I CICS is busy. VSE MSG command has been rejected.
    Explanation:
    CICS cannot accept the MSG command as 255 MSG commands to
    invoke transactions are currently queued.
    System Action:
    CICS rejects the MSG command.
    User Response:
    Reenter the MSG command.
    Destination: Console
    Module: DFHEVAS
    

Temporary fix

  • FIX AVAILABLE BY PTF ONLY
    

Comments

APAR Information

  • APAR number

    PK11722

  • Reported component name

    CICSTS FOR VSE

  • Reported component ID

    564805400

  • Reported release

    B0P

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2005-09-12

  • Closed date

    2005-12-12

  • Last modified date

    2006-11-10

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

    UK10000

Modules/Macros

  •    DFHEVA10 DFHMEEVC DFHMEEVE DFHMEEVG DFHMEEVK
    MFHMEEVE
    

Publications Referenced
GC34556107    

Fix information

  • Fixed component name

    CICSTS FOR VSE

  • Fixed component ID

    564805400

Applicable component levels

  • RB0P PSY UK10000

       UP05/12/16 P E312

Fix is available

  • Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.

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Document Information

Modified date:
10 November 2006